baber/WOPTO huggingface dataset:
Patent CA-2014502-A1 (CA)
Title: Borehole acoustic transmitter
Inventor: MEDLIN WILLIAM L
IPC: B06B1/06
Filed: 1990-04-12
Abstract: An acoustic transmitter for use in a borehole logging tool employs multiple Helmholtz resonators stacked such that apertures in opposite sides of each of the resonators are in linear alignment so as to provide increased acoustic energy output over a broad band of low frequency seismic frequencies.
Patent CA-2015370-A1 (CA)
Title: Method for making agglomerated structural products from long, thin, narrow, green wood
Inventor: LISKA FRANK T
IPC: F26B17/04
Filed: 1990-04-25
Abstract: High quality agglomerated structural boards, lumber and other structural members such as I, U, T, L beams or corrugated plates or moldings are produced from engineered long, thin narrow green wood strands.  Process, in which the parallel alignment of the strands to each other and their original starting orientation are maintained through their transportation, drying, blending, forming and pressing, preventing their intermingling, twisting, warping and breaking.  The application of fungicides, pesticides, fire retarding and other chemicals during the blending process, impregnates or colors the agglomerated structural products throughout their cross section, making the products resistant against rot, insects, fire or aesthetically attractive for architectural applications.
Patent CA-2018979-A1 (CA)
Title: Use of 5-phenyl-2-furan esters and amides as antiepileptic agents
Inventor: BURCH HOMER A
IPC: A61K31/54
Filed: 1990-06-14
Abstract: AS ANTIEPILEPTIC AGENTS                 ABSTRACT OF THE DISCLOSURE      A method of preventing epileptic seizures  in a human  or lower animal  subject  susceptible to  said  seizures,  comprising systemically administering to said subject a safe and effective amount of a compound of the formula:       wherein (a)  X is halo or nil, and Y is a substituent selected from the group  consisting of  unsubstituted  or  halogen-substituted methyl, halo, nitro, amino, and methoxy; and (b)  R is N(R3)2, OR1N(R3)2, N(R2)R1N(R3)2, or N(R2)N(R3)2; where R1 is C1-C3 alkyl which is unsubstituted or substituted with C1-C2 alkyl; R2 is hydrogen or lower alkyl; and each R3 is, independently, hydrogen or lower alkyl; or both R3 groups are connected to form a saturated 5- or 6-membered heterocycle containing 1 or 2 heteroatoms selected from oxygen and nitrogen and said heterocycle is unsubstituted or substituted with lower alkyl or hydroxy-substituted lower alkyl; or a pharmaceutically-acceptable salt thereof.      Preferably X is halo, preferab1y Y is trifluoromethyl, and R is preferably 3-diethylamino-2,2-dimethylpropoxy.
Patent CA-2019681-A1 (CA)
Inventor: BRICKNER LOUIS C
IPC: B23D51/10
Filed: 1990-06-22
Abstract: A wrench for rapid and safe adjustment of a scroll saw blade retaining clamp screw.  The wrench provides a parallel guide pin attached to the wrench. The guide pin is inserted into a hole in the blade retaining clamp jaws, aligning and supporting the wrench head relative to the clamp screw.
Patent CA-2021092-A1 (CA)
Inventor: GERMER WARREN R
IPC: G01R15/09
Filed: 1990-07-12
Abstract: An electronic watthour meter is digitally configurable to operate as several different types of watthour meters for metering electrical energy from a variety of different electric utility services. Automatic scaling of line input currents is provided to scale the voltage input to an analog to digital converter over selected ranges such that low level and high level input signals are measured in an optimum range. A digital signal processor is employed to calculate values for metered electrical energy and output pulses, each proportional to a quantum of energy flowing in the circuit being metered. The processor calculates the value of DC offset errors inherent in the various analog circuits of the meter and uses that value in the calculation of metered electrical energy to compensate for such offset errors. The meter employs automatic and manually initiated test functions for testing the operation of the processor and other critical circuits in the meter.
Patent CA-2024221-A1 (CA)
Inventor: SHAW ALLAN
IPC: F24F11/76
Filed: 1990-08-29
Abstract: ABSTRACT      An air conditioned space is cooled within a narrow target zone (as depicted on a psychometric type chart) within which human occupants of the conditioned space would feel thermally comfortable, wherein factors including the heat transfer resistance of occupants' clothing and level of physical activity determine the target zone, by a method which includes correction of operative temperature, relative air velocity and humidity within the conditioned space, inherently controlling humidity by control of effective dehumidifier size while maintaining a low face velocity of air and a high velocity of coolant flow, but varying either, or both, dehumidifier size and the leaving air temperature if humidity ratio falls below four or exceeds thirteen grams of water per kilogram of dry air.
Patent CA-2024771-A1 (CA)
Inventor: OGURA ICHIRO
IPC: G06N99/00
Filed: 1990-09-06
Abstract: ABSTRACT OF THE DISCLOSURE       A matrix of optical functional devices are divided into plural device units.  Each of the device units includes at least two optical functional devices having light transmitting coatings.  The coatings have transmission factors which are different from each other.  Light signals emitted through the coatings from the at least two optical functional devices in each unit are received by a corresponding light receiving device among light receiving devices arranged in a one-dimensional pattern.   In each device unit optical functional devices to be driven are selected, so that a coupling degree between each device unit and the corresponding light receiving device is changed.
Patent CA-2030269-A1 (CA)
Inventor: HOPPER CLAYTON L
IPC: G03B21/56
Filed: 1990-11-19
Abstract: PERFORATE PROJECTION SCREEN                 ABSTRACT OF THE DISCLOSURE    A perforate projection screen for movies, planetariums and the like having uniform reflectivity throughout its visible surface.    The screen is made from a plurality of perforate panels and is mounted, when in use, with a dark non-reflective chamber behind the screen.  Any overlapped areas of the panels and any frame members or other objects, in close proximity to the back of the panels are covered with a black velour type material having vertically extending fibers to absorb the light rays entering the holes in those areas of the panels and thereby prevent light reflection from such holes which would cause undesirable light strips or areas to be visible in the overlapped portions of the screen or in the area of the screen where frame members or other objects are in close proximity to the back of the panel.
Patent CA-2030310-A1 (CA)
Title: Derivatives of n-hals-substituted amic acid hydrazides
Inventor: MACLEAY RONALD E
IPC: C08K5/36
Filed: 1990-11-20
Abstract: DERIVATIVES OF N-HALS-SUBSTITUTED      AMIC ACID HYDRAZIDES     Abstract of the Disclosure N-(2,2,6,6-tetraalkyl-4-piperidinyl)amic acid hydrazides contain a light stabilizing group, a heat stabilizing group and an amic acid hydrazide functionality in the same molecule.  The amic acid hydrazide functionality in the compounds enhances the photooxidative stabilizing properties of the hindered amine groups and contributes thermal and oxidative stabilizing and metal complexing properties to the compounds.  The novel compounds are excellent light stabilizers for polyolefins, have low volatility and are not readily lost from polymeric systems via volatilization, migration or extraction.
Patent CA-2030988-A1 (CA)
Title: Pharmaceutical for subcutaneous or intramuscular administration containing polypeptides
Inventor: PAQUES ERIC-PAUL
IPC: A61K38/55
Filed: 1990-11-28
Abstract: Liquid pharmaceuticals for subcutaneous (sc) or intra-muscular (im) administration containing a polypeptide and at least one amino acid, a process for the preparation of such a pharmaceutical and the use of an amino acid, which is suitable for sc or im administration, in a solution of a polypeptide are described.
Patent CA-2031898-A1 (CA)
Title: Chemical compounds
Inventor: HEDGECOCK CHARLES J R
IPC: A61K31/55
Filed: 1990-12-10
Abstract: ABSTRACT OF THE DISCLOSURE:           The invention relates to a process for preparing compounds of formula (I)   (I) [wherein:  R2 is H,  C1-C5 alkyl,  a C3-C6 cycloalkyl, a phenyl, or a substituted phenyl; R3 and R4, which may be the same or different, is a H, Hal, -CX3 (in which X is halogen atom),-NO2, -CN, -NRR' (in which R is H or C1-C5 alkyl and R' is a C1-C5 alkyl or R and R' together is a C2-C5 alkylene),a -CONRR' (in which R and R' are defined as above),     a -OR7 (in which R7 is a H, a C1-C5 alkyl or a phenyl);     a -SR7, -COOR7  or -COR7 (in which R7 is defined as above)); R5 is a H or F; and either R1 represents a group   in which R8 and R'8, which may be the same or different, each is a C1-C3 alkyl or R8 and R'8 together represent a C2-C5 alkylene and Y and Y',  which may be the same or different, each is O or S; and R6 is a H, Hal, NO2, NH2, -NRR' (in which  R and R' are defined as above) or a -SR7, -OR7, or -COR7 (in which R7 is defined as above); or, R1 is a -COOR9 (in which R9 is a C1-C5 alkyl  or a C3-C6 cycloalky); and R6 is a H, Hal or NO2, or -NRR' or -CONRR' (in which R and R' are defined as above), or a -SR7, -OR7, -COOR7 or -COR7 (in which R7 is defined as above), or a -N=CH-OR9 (in which R9 is defined as above), or a -CN, or NH2,  or a -N=CH-NMe2,  or a thiocyano,  isothiocyano or thioacetyl or R1 is a CORc' (in which Rc is a C3-C6 cycloalkyl) and R6 is a H, Hal or NO2, or a -NRR' or CONRR' (in which R and R' are defined as above), or a -SR7, -OR7, -COOR7 or -COR7 ( in which R7 is defined as above), or a -N=CH-ORg ( in which R9 is defined as above), or a -CN] and pharmaceutically acceptable acid addition salt thereof, either by cyclising a compound of formula (IV)                  (IV) wherein R1, R2, R3, R4, R5 and R'6 respectively correspond R1, R2, R3, R4, R5 and R6 which are defined as above, or reacting a compound of formula (IB)             (IB) (wherein R1, R2, R3, R4 and R5 are defined as above and R'6 is a group (other than the desired group R6) defined as above for R6) with an appropriate reagent whereby the group R"6 is replaced by the desired group R6,  or comprises reacting a compound of formula (V)                   (V) with a compound of formula (VI) Rc-Mg-Hal           (VI) (wherein R'c is defined as above and Hal represents a halogen atom).
Patent CA-2037167-A1 (CA)
Inventor: DIPAOLA FRANK A
IPC: A01K85/08
Filed: 1991-02-27
Abstract: This  invention  relates  to  a  fishing  lure  having  a flexible  body  portion.   The  body  portion  has  means  for attaching a hook to one end and a fishing line to the other end.  The body portion is formed by a flexible core element with radially extending flexible fibers from the core element.        Because of the flexibility of the radially extending fibers, a "soft" body portion is formed resulting in the advantage that the fish has a tendency to keep the lure in its mouth longer.          The fibers are longer at the middle of the body portion and continually get shorter towards the ends in a tapering fashion such that the body portion has a minnow-like shape.  The body portion, further, has memory characteristics such that it can be shaped into various configurations and can travel through water and remain in a set configuration.  When a fish strikes the  lure  the  body portion will  flex  reducing the  fish's mechanical advantage to help maintain the fish on the lure.
Patent CA-2037276-A1 (CA)
Title: Wiper restorertm
Inventor: VAN DER VECHT JOHN J
IPC: B60S1/38
Filed: 1991-02-28
Abstract: ABSTRACT OF DISCLOSURE     A device to restore the integrity of the working edge of a worn wiperblade.   Said device consists of an abrasive strip which is mounted in a handgrip.
Patent CA-2038742-A1 (CA)
Title: Procedure for the detection of pathogens using dna probes
Inventor: AYYANATHAN KASIRAJAN
IPC: C12Q1/68
Filed: 1991-03-21
Abstract: Abstract:           Disclosed are novel methods by which a rapid, multisample, non-radioactive procedure to detect pathogens, such as Plasmodium flaciparum parasites, in biological fluids including human blood samples is achieved.  The detection is bases on the use of parasite specific DNA probes and sandwich hybridization technique employing microtitre plates.  The high sensitivity and specificity of these assays and the ease with which they can be performed enables on to use them for routine analyses of a large number of blood and other coloured tissue samples of vertebrates and invertebrates.         Especially, these assays can be used to detect the presence of P.falciparum.  The procedure described is amenable for application in a wide variety of DNA detection analysis using non radioactive DNA probes.  In regard to detection of P.falciparum, the invention also relates to novel DNA fragments and hybridisation probes based on such fragments.         The invention provides a diagnostic kit on the basis of the novel methods.
Patent CA-2041323-A1 (CA)
Inventor: PINTO HENRY M
IPC: B29C49/00
Filed: 1991-04-26
Abstract: A tubular preform for a blow-molded container. The preform has a closed end and an opposite open end, the relative dimensions of the ends being such that the closed end would be receivable in the open end of a similar preform to nest there were it not for the provision of an antinesting feature in the form of a plurality of axially extending ribs which protrude inwardly from the inner surface of the preform adjacent to the open end to prevent entry of another preform.
Patent CA-2050568-A1 (CA)
Title: High-resolution vision system for part inspection
Inventor: TURCHECK STANLEY P JR
IPC: G01N21/88
Filed: 1991-09-03
Abstract: ABSTRACT OF THE DISCLOSURE A   high-resolution   vision system for   a detailed inspection of parts.  A charge  coupled  device provides  high-resolution  in  both  an  X and a Y axis. Data from the charge coupled  device  resulting  from  a standard  part  is stored in compact form.  Compact data from  a  part  being  inspected  is  compared  with  the compact data from the  standard  part  to  determine  if the tested part is good or not.
Patent CA-2051199-A1 (CA)
Inventor: D AMBROSE JOHN J
IPC: G06F13/14
Filed: 1991-09-11
Abstract: A   hardware-based   system   for   managing   multiple input/output devices sharing the same set of addresses in a computer system is described.  The new VIRTUAL ENABLED state is a hybrid of the current ENABLED or ACTIVE and DISABLED or INACTIVE  states.   In  the  ENABLED  state,  an  I/O  adapter responds to I/O addressing and presents interrupts to the processor.  In the DISABLED state, the I/O adapter does not respond to I/O addressing and does not present interrupts. In the new VIRTUAL ENABLED  state,  the  adapter does not respond to I/O addressing (as in the DISABLED state), but will still produce an interrupt (as in the ENABLED state). With the VIRTUAL state, multiple I/O adapters that would normally contend for the  same  set of addresses  (ENABLED state),  or  optionally  be  rendered  inoperable  (DISABLED state),  can  always  remain  available  for  I/O.   A  single register where the processor can read the interrupt status for all ENABLED and/or VIRTUAL ENABLED adapters sharing the same set of addresses is provided.  Other unique registers are also provided to allow the processor to cycle any of the ENABLED and VIRTUAL ENABLED devices between these two states to permit servicing of the interrupt.
Patent CA-2052626-A1 (CA)
Title: Surface combustion burner
Inventor: NAKAMURA SUNAO
IPC: F23D14/14
Filed: 1991-10-02
Abstract: Abstract A surface combustion burner of a plural layer structure made by laminating a layer of a burning resisting material such as a ceramic material and a supporting layer such as a metal fiber mat.  There are provided a first layer (1) made of a material having a burning resisting property and forming a gas combustion zone and a second layer (2) for supplying a gas to the first layer and supporting the first layer, and further provided between the first and second layers is a third layer (3) which is joined with the first layer by sewing with a burning resisting thread (4) and which is bonded to the second layer by sintering.
Patent CA-2053339-A1 (CA)
Title: Hydroxymethyl(methylenecyclopentyl) purines and pyrimidines
Inventor: ZAHLER ROBERT
IPC: C07D239/54
Filed: 1991-10-11
Abstract: Antiviral activity is exhibited by compounds having the formula (see formula I) and its pharmaceutically acceptable salts.
Patent CA-2057240-A1 (CA)
Title: Process and apparatus for removing dust, sulfur compounds and nitrogen oxides from combustion exhaust gases
Inventor: WEISWEILER WERNER
IPC: B01D53/34
Filed: 1991-12-06
Abstract: ABSTRACT OF THE DISCLOSURE:           A process is described which serves to remove dust, sulfur compounds and nitrogen oxides from combustion exhaust gases and in which the dust-containing combustion exhaust gases are mixed with NH3 and are then supplied as fluidizing gas to a fluidized bed reactor, which contains mixed solids comprising fly ash,  iron sulfates and the calcium compounds Ca(OH)2, CaCO3, CaO, CaSO4 and CaSO3 and is supplied with Ca(OH)2 and FeSO4 and is operated at a temperature between 300 and 450°C,  the combustion exhaust gases which have left the fluidized bed reactor are supplied to a multi-stage electrostatic precipitator, the solids collected in the first stage of the   electrostatic precipitator are recycled to the fluidized bed reactor, and the  solids collected in  the  further  stages  of the electrostatic precipitator are partly recycled to the fluidized bed reactor and partly discharged.
Patent CA-2058072-A1 (CA)
Title: Concentrated wash automatic washer with reciprocating basket
Inventor: SINGH DEVINDER
IPC: D06F39/08
Filed: 1991-12-19
Abstract: ABSTRACT OF THE DISCLOSURE         An automatic washer is provided for performing a concentrated wash process in which there is a rotatable wash basket in a motive apparatus for rotating the wash basket about a generally vertical axis as well as being operable to oscillate the wash basket to impart an agitation force to the wash load carried in the basket.  Vertical fins and spray inlets are provided adjacent the peripheral wall of the basket to impart an agitation force to the wash load.  Also, a central post is mounted within the basket for rotation with the basket and a spray device is mounted on the post for directing a detergent solution against the wash load.            December 12, 1990 (994) c:\890\whirlpoo\P902900
Patent CA-2061461-A1 (CA)
Title: Slide plate fifth wheel
Inventor: BUCKLEY JOHN T
IPC: B62D53/08
Filed: 1992-02-19
Abstract: SLIDE PLATE FIFTH WHEEL                 ABSTRACT OF THE DISCLOSURE         A slide type fifth wheel hitch assembly wherein the slide brackets mounting the hitch are supported by and on a pair of parallel, laterally spaced, fore-to-aft elongated base plates having a transverse forward tie bar having its ends welded to the tops of the base plates and extending to the rack bars to form front stops, and having a transverse rear tie bar having its ends welded to the bottoms of the base plates.
Patent CA-2063284-A1 (CA)
Inventor: SCRIVER RICHARD M
IPC: C08L21/00
Filed: 1992-03-18
Abstract: Abstract of the Disclosure BONDING AGENT FOR WIRECOAT/BELT COMPOUNDS Reinforced rubber composite and article made therefrom, wherein the reinforcement preferably comprises cords of brass-coated steel and the rubber of the composite or article is a vulcanizate of a blend comprising (A) about 5-100 phr of a graft copolymer comprising a lower alkyl acrylate or lower alkyl methacrylate and a diene rubber or mixture thereof and (B) about 0-95 phr of at least one additional diene rubber or mixture thereof.  The overall alkyl acrylate or alkyl methacrylate content of the blend is about 2-10 phr, preferably about 3-8 phr.  A preferred article is a tire having a load bearing fabric-reinforced component, e.g. a reinforcing belt (22) wherein the fabric comprises cords of brass-coated steel and the rubber of the component has the composition above specified.
Patent CA-2063470-A1 (CA)
Title: Coated chewing gum product with emulsifier subcoat
Inventor: DAVE JAYANT C
IPC: A23G4/00
Filed: 1992-03-19
Abstract: ABSTRACT OF THE DISCLOSURE        A coated chewing gum product with an emulsi-fier subcoat and method of producing the same are disclosed.  Chewing gum centers are coated first by an emulsifier, preferably hydrated lecithin, and then by a hard coating, such as a sugar coating applied by con-ventional hard-panning techniques.  Preferably a binder layer, such as gum arabic, is provided between the emulsifier subcoat and the hard-panned coating.
Patent CA-2064327-A1 (CA)
Inventor: BINGHAM STEVEN D
IPC: H03H11/22
Filed: 1992-03-27
Abstract: A broadband phase shifter and vector modulator includes two artificial transmission lines interconnected by FETs to selectively produce and sum incremental phase shifts of an input signal. A number of low pass filter sections are connected in series to form the first of the two artificial transmission lines and a number of high pass filter sections are connected in series to form the second artificial transmission line. Use of low pass and high pass filters equalizes transit times of each phasor through the phase shifter so as to maintain the proper phase relationship between the phasors over a broad bandwidth.      Each of the two artificial transmission lines are coupled to a transistor circuit connecting corresponding low and high pass filter sections. The phase shifter operates by selectively summing the output variable-amplitude phase-shifted signals generated within the transmission lines to produce an output signal having a phase shift between 0° and 360°.
Patent CA-2064799-A1 (CA)
Inventor: KIRK DAVID T
IPC: F23D14/20
Filed: 1991-06-17
Abstract: A burner head (1), suitable for use in a furnace, has an array or matrix of combustion air apertures divided into three (outer, middle and inner) aperture rings (6, 7, 8). Gaseous fuel is conveyed down central fuel pipe (9) which flows through gallery (G) to individual broached apertures (6a, 7a, 8a) of aperture rings (6, 7, 8), which fuel mixes with combustion air being drawn up through the centre of said apertures. The aperture matrix is configured to eliminate anomaleous "hot spots" which would accelerate corrosion as well as equalising flow distribution through the gallery (G) to the apertures (6a, 7a, 8a).
Patent CA-2065341-A1 (CA)
Inventor: BRGLEZ FRANC
IPC: H04J13/00
Filed: 1990-08-24
Abstract: Un système générateur de profils aléatoires pondérés à haute précision génère toute probabilité désirée de bits individuels à l'intérieur d'un profil binaire aléatoire pondéré. Le système comprend une mémoire circulaire contenant une série de facteurs de pondération, chaque facteur de pondération représentant la probabilité désirée qu'un bit du profil aléatoire pondérée soit au niveau binaire UN. Les bits aléatoires provenant d'un générateur de nombres aléatoires sont combinés avec un facteur de pondération pour former un unique bit aléatoire pondéré. Les bits aléatoires et le facteur de pondération sont combinés dans une série de portes de multiplexeur interconnectées. Chaque porte de multiplexeur a deux entrées de données, l'une étant un bit provenant du facteur de pondération, l'autre étant la sortie de la porte du multiplexeur précédent. Le bit de nombre aléatoire commande la sortie du multiplexeur. Par exemple, lorsque l'entrée de commande (bit aléatoire) est au niveau haut, la sortie du multiplexeur est le bit du facteur de pondération. Lorsque l'entrée de commande (bit aléatoire) est au niveau bas, la sortie du multiplexeur est la sortie du multiplexeur précédent. La sortie de la porte du multiplexeur final de la série est le bit pondéré.